The document discusses energy harvesting through various renewable sources like solar, wind, hydro, and biomass. It outlines the present energy crisis due to factors like global warming, pollution, and depleting fossil fuels. The researcher proposes studying piezoelectric materials to improve energy generation. Their ideas include using machine learning to optimize solar installation locations and developing IoT devices to harvest small amounts of energy from human activities. They also suggest investigating Li-Fi technology for micro-energy applications. The overall goal is to research sustainable energy solutions through renewable sources and energy harvesting.

1. Research Work
and Innovation
Energy Harvesting
Materials and Processes of Sustainable Energetics
Kota Taharaguchi
Research Work and Innovation

2. Research Work
and Innovation
• Introduction
• Present energy crisis
• Our strategy
• Overview of Energy Harvesting
• What is Energy harvesting?
• Advantages and disadvantages?
• Applications
• My research ideas
• Conclusion
1/18
Outline

3. Research Work
and Innovation
• Global warming occurs from human activities
• A lot of pollution to damage our Earth
• Depleting in fossil fuels supply
• Economy intact with energy supply
2/18
Present energy crisis
403.3 ppm
(2016)

4. Research Work
and Innovation
• Solar cells
• Biomass energy
• Wind energy
• Hydro energy
• Geothermal energy
• Ocean energy – Tidal wave
3/18
Our strategy

5. Research Work
and Innovation
Form of Energy
4/18
Overview of Energy harvesting
Kinetic Energy Potential Energy
• Electrical energy
• Radiant Energy
• Thermal Energy
• Motion Energy
• Sound energy
• Chemical Energy
• Mechanical Energy
• Nuclear Energy
• Gravitational Energy

6. Research Work
and Innovation
What is energy harvesting?
 Gather energy from ambient environment and convert
into usable electrical energy
Importance of energy harvesting?
 Need for endless energy supply to electronic system
 To conserve energy consumption and promote
environmental friendly
5/18
Overview of Energy harvesting

7. Research Work
and Innovation
Advantages
 Boundless supply
 Ample energy solution
 Readily available, anytime and everywhere
 Eliminate the problems that arise from replacement and
the need for Batteries
 Scalable to connect other applications such IoT and
Machine learning
6/18
Overview of Energy harvesting

8. Research Work
and Innovation 7/18
Overview of Energy harvesting

9. Research Work
and Innovation
Applications
 Solar tree
 Piezoelectric
 Shoes
 Install ground
 Heat from cars
 Wearable energy production
8/18
Overview of Energy harvesting

10. Research Work
and Innovation
• Improve the piezoelectric element ability
• New combination of crystals
9/18
My research ideas
• Simulation for installing energy harvesting applications
• Machine learning techniques for getting energy such as
solar radiation and installation location
• LSTM? RMM?
• Developing Iot to get micro-energy like human
activities(walk, run, turn over on the bed)
• Li-Fi technology can be used?

11. Research Work
and Innovation
• Improve the piezoelectric element ability
• New combination of crystals
10/18
My research ideas

12. Research Work
and Innovation 11/18
My research ideas
Piezoelectricity
 The material is crystals which acquire a charge when
compressed, twisted etc.
 Quartz
 Silk
 Enamel
 Barium Titanate
Structure of Piezoelectronic material

13. Research Work
and Innovation 12/18
My research ideas
• Simulation for installing applications
• Machine learning techniques for getting energy such as
solar radiation and installation location
• LSTM(Long Short Term Memory)? RNN?

14. Research Work
and Innovation 13/18
My research ideas
Machine leaning
Machine Learning is a study of computer algorithms that
improve automatically through experience
First Learning… After much Learning…

15. Research Work
and Innovation
Modeling of terrestrial solar radiation
 Sky model
 Satellite based model
 Environmental measurement base model
 Ground meteorological measurement based model
14/13
My research ideas
Condition: X =
𝟏
𝑮𝒓𝒐𝒖𝒏𝒅 𝒄𝒐𝒏𝒅𝒊𝒕𝒊𝒐𝒏
𝑻𝒆𝒎𝒑𝒆𝒓𝒂𝒕𝒖𝒓𝒆
𝑻𝒊𝒎𝒆
𝒆𝒕𝒄
=
𝒙𝟎
𝒙𝟏
𝒙𝟐
𝒙𝟑….
θ =
𝜽𝟎
𝜽𝟏
𝜽𝟐
𝜽𝟑….
Amount of energy to get: Y = θT * X
Once we can decide the condition X,
It is possible to expect how much the solar panel can produce energy

16. Research Work
and Innovation 15/18
My research ideas
• Developing Iot to get micro-energy
• Li-Fi technology can be useful?

17. Research Work
and Innovation
Li-Fi(Light Fidelity)
 100 times data transportation speed more than Wi-Fi
 Save energy easily because it does not require a radio
tower which spend much energy
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My research ideas

18. Research Work
and Innovation
In a Smart world
 Autonomous smart devices are required
 Not only large scale energy plant, but also better to
think about micro-scale applications for energy
harvesting
 To solve the energy problems, the combination of
technologies must be helpful
17/18
Conclusion

19. Research Work
and Innovation 18/18
• https://www.theguardian.com/environment/2017/oct/30/glo
bal-atmospheric-co2-levels-hit-record-high
• https://www.youtube.com/watch?v=T4dO1GKPx4Y
• https://purelifi.com/technology/#how-it-works
Resources

20. Research Work
and Innovation
Thank you for your attention!
Any questions?